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View Full Version : TPS, what does it do? Does it effect idle?



DjEclipse
07-27-2009, 02:40 PM
Hi everyone.

I bought a 05 ltz400 a few weeks ago. After a good ride in the mud it no longer wants to idle properly.

I've taken the carb apart, cleaned it, dropped to a 150mian jet form 155, checked float bowl height and it still won't idle.

I noticed that I get no reading between the pins on my TPS, no matter how I test them.

What exactly does the TPS to, can it effect idle?

I know on a FI car/ bike the tps is used to determine how much fuel and spark to add, but not sure what it is for on a carburated bike.


I have a full yosh exhaust with the K&N air filter and K&N air box filter cover (replaces the air box cover.

Thanks.